Skip to main content
STMicroelectronics STM8L151F3P6 — Microcontrollers & Processors (MCU / MPU / DSP)

ST STM8L151F3P6 8-bit MCU, 16 MHz, 8 KB Flash, 20-TSSOP

MPNSTM8L151F3P6
Active

ST STM8L EnergyLite series 8-bit MCU, STM8 core, 16 MHz, 8 KB Flash, 1 K x 8 RAM, 256 x 8 EEPROM, 18 I/O, 20-TSSOP, -40°C to 85°C.

$2.2900Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STM8L151F3P6 specifications
ParameterValue
SeriesSTM8L EnergyLite
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.8V ~ 3.6V
Operating temperature-40°C~85°C(TA)
Speed16MHz
PackageTube
RAM size1K x 8
Core size8-Bit
EEPROM size256 x 8
PeripheralsBrown-out Detect/Reset, DMA, IR, POR, PWM, WDT
ConnectivityI²C, IrDA, SPI, UART/USART
Number of i (O)18
Core processorSTM8
Case20-TSSOP (0.173\", 4.40mm Width)
Data convertersA/D 10x12b
Program memory size8KB (8K x 8)

Product details

The STM8L151F3P6: At 16 MHz, this is not a high-throughput part — you are not doing video or heavy DSP here. What it buys you is deterministic instruction execution for a real-time control loop (e.g., a PID cycle at a few kilohertz) while keeping the clock tree simple. The internal oscillator means you can skip an external crystal, saving two pins and a bit of board area, though you trade absolute accuracy for that convenience. If your application needs sub-1% timing over temperature, plan to calibrate or feed an external clock.

Sourcing and RFQ posture

We source the STM8L151F3P6 through independent distribution, including surplus and broker channels where EOL parts are still available. For volume commitments or last-time-buy quantities, submit an RFQ with your target lead time and annual usage — we can search our network for the best coverage. Small quantities for prototyping are also quoted on request.

Frequently asked questions

What is a replacement or equivalent for STM8L151F3P6?

Within the same family, the STM8L151F3P3 is functionally equivalent but in a 20-SO package instead of 20-TSSOP — not a direct footprint swap. For a pin-compatible replacement, you may need to evaluate the STM8L151x3 series in 20-TSSOP from surplus stock.

Does STM8L151F3P6 have an internal oscillator?

Yes, it has an internal oscillator, so you can operate without an external crystal. The internal oscillator is sufficient for many low-speed control applications.

What is the operating voltage of STM8L151F3P6?

The supply voltage range is 1.8 V to 3.6 V, allowing direct operation from two alkaline cells or a regulated Li-ion supply.

How many I/O pins does STM8L151F3P6 have?

It provides 18 I/O lines in the 20-TSSOP package.

Where can I buy STM8L151F3P6 and what is the price?

We source the STM8L151F3P6 to order against an RFQ. Availability and current pricing are confirmed at quote time — submit an RFQ for your target quantity and lead time.